通过在饮食中使用棕色海藻来缓解乳制品泥储存产生的氨排放,以实现可持续的环境管理
Azadeh Dabiri1,2, Khagendra Raj Baral3, Tim Gilfedder2
1Queen's University Belfast, Belfast, UK.
Scientific reports
|July 2, 2025
概括
将棕色海藻 (Himanthalia elongata) 或其提取物添加到奶牛的饮食中,大大降低了储存泥中的氨排放量. 这为减轻农业温室气体排放提供了一种可持续的方法.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 动物营养 动物营养
背景情况:
- 畜牧业生产是氨 (NH) 和温室气体排放的重要来源.
- 棕色海藻,特别是Himanthalia elongata,具有生物活性化合物,如花素,有可能改善蛋白质消化和降低NH3释放.
- 在储存期间,H. elongata对乳制品泥产生的NH3排放的影响尚不清楚.
研究的目的:
- 调查饮食Himanthalia elongata及其提取物对乳牛泥中的氨 (NH) 排放的影响.
- 评估H. elongata作为减轻乳制品养殖中NH3释放的食补充剂的疗效.
主要方法:
- 九头荷尔斯坦-弗里西亚牛被分为三个饮食组:对照组,4%的H. elongata含量和4%的海藻提取物含量.
- 泥是通过将每个饮食中的奶牛的便和尿液 (3:2比) 结合起来制备的.
- 储存泥的氨排放被监测了六周,使用静态室方法.
主要成果:
- 与H. elongata (733.70±66.46毫克N/m2) 和其提取物 (996.71±26.94毫克N/m2) 补充的饮食导致累积氨排放明显低于对照饮食 (1379.64±92.76毫克N/m2).
- 经过H. elongata和海藻提取物处理,NH3排放显著减少.
结论:
- 用Himanthalia elongata及其提取物的食补充剂可以有效地减轻乳牛泥产生的氨排放.
- 埃隆加塔 (H. elongata) 提出了一项有希望的,可持续的战略,用于减少奶牛养殖中的环境污染.
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